“Who among us does not harbor such regrets? “
Indeed. Who amongst us has never said something stupid or unkind to a loved one that we wish we could take back or apology for? And once the person to whom those words were directed is gone, and it’s no longer possible to apologize to them, well, then there will be those regrets.
Paul has a conscience.
It’s only the sociopath or the psychopath who regrets nothing.
Or Edith Piaf.